How do you get past the Aqua/Magma members in front of the Museum in Slateport city in ORAS?

Question

I need help, some people say that I have to get into the museum to enter the contest, but I dont know how to.

Answer 1

You have to go to the shipyard and tal to Dock, who will then tell you to go find Stern in the museum.

Source: Expierience